Question

help






a .250-kg coffee cup @ room temperature is filled with 250 cc of boiling coffee. The cup and the coffee come to thermal equilibrium at 80 degrees C. if no heat is lost , what is the specific heat of the cup? [hint: consider the coffee to be essentially boiling water.]

Answer 1

@amistre64

Answer 2

specific heat ... i have some recollection of this from physic1 class

Answer 3

would please help me to solve this?

Answer 4

Qmt or something familiar .... do you have a formula for heat exchange to refresh my meory with

Answer 5

\[mc \Delta T\]

Answer 6

thats the one i was looking for

Q = mcT, m is the mass, c is the specific heat, T is the change in temperature

Answer 7

yes....what shall I do first to solve this problem?

Answer 8

T = 100 - 80; since water boils at 100 celsuis right?

Answer 9

Qgain = Qloss

Answer 10

yes...

Answer 11

The cup gains heat from the boiling coffee, the coffee loses heat.

Answer 12

christian seems to have a better hold on this :) good luck

Answer 13

what equation should i use,,,?

Answer 14

250grams , then what will be the specific heat of coffee???

Answer 15

Since a cup of coffee consists mostly of water we use the specific heat and latent heat of vaporization of water which is 4186 J/kg-K and 2256kJ/kg respectively

Answer 16

Wait lemme show you

Answer 17

okay,,okay,,i will wait

Answer 18

btw what is room temperature?

Answer 19

hello?

Answer 20

im using 20 degrees C

Answer 21

owh i used 23deg C

Answer 22

R u from the philippines

Answer 23

ahhhhh...

Answer 24

Ill upload the picture

Answer 25

yes. why?

Answer 26

ahh,,alright :)

Answer 27

hirap nako mag english hahaha ito na sesend ko na

Answer 28

nagtatagalog naman pala e

Answer 29

uy,,patulong naman sa physics,,kailangan laang,,madami din..hahaha

Answer 30

ito rin inaaral ko ngayon eh. quiz sa physics bukas. taga mapua ako haha.

Answer 31

owwww...may gaaas!! waw!!! mapua...Engring ka?

Answer 32

ay di matalino ka!! MAPUA e!! patulong awa na,,haha

Answer 33

Oo mech eng haha

Answer 34

waw,,dabest ka na !!!! uy patulong ha,,hihihi

Answer 35

tamang aral lang yan tapos sources. :)) Youtube gaming lang. Tapos kinig sa prof tapos tamang tulog lang

Answer 36

wait,kokopyahin ko sagot mo,,hahahah

Answer 37

yown,,ayy di uso matulog sakin

Answer 38

Alam mo naman siguro yung mga latent heat of vape at fusion na yan diba?

Answer 39

Ano ba di mo nagegets?

Answer 40

latent of fusion ay yung nicoconvert ang ice to steam, mga ganun???? yan lang diniscuss samin kasii

Answer 41

yung ganito,,, ex, 150 g if ice @ -20 imimix sa 200 g of steam @180...mga ganun..

Answer 42

hinde

Answer 43

For example

Answer 44

Ay may ganyan akong sinasagutan na problem ngayon teka. pakita ko sayo solution ko

Answer 45

alin ga ang latent heat,,,di ba yun yung nililipat sa ice to steam,,yung may 540 at 80

Answer 46

anung prose?

Answer 47

yung latent heat of fusion yun yung ice to liquid water conversion. Pag ice to water Lf. Pag water to steam naman yun yung Lv

Answer 48

may process.

Answer 49

ahhhhhhhhhhhh,,uu,,tinuro pala yun samin,,alam ko yun,,ang di ko nagets ay yung pag pinagmix na

Answer 50

ito example

Answer 51

uy,,bakit yung sa sinend mo,,yung Ccof= 4186 J/kg K ay naging 4180 dun sa Sol'n????

Answer 52

typo lang yun haha

Answer 53

4186 J/kg K parin yun

Answer 54

ito

Answer 55

What mass (in grams) of steam at 100°C must be mixed with 133 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 35.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and the latent heat of vaporization is 2256 kJ/kg.

Answer 56

Yan question

Answer 57

typo..hahaha...astig!

Answer 58

ito ppt

Answer 59

sayo lang ako nagkita ng ganito..parang di to diniscuss.. di kasi talaga iddiscuss samin ng matindi,,malayo sa course na

Answer 60

wow! effort,,dabest talaga mga tagaMapua! di mareach :D

Answer 61

Aral lang yan ng mabute hahaha. :)) Di nga ako marunong mag trig functions nung highschool eh. Pwede pumetix pero kailangan diskarte rin sa aral. haha.

Answer 62

ay ayaw ko sa math,,
kaya di ako nag-eng

Answer 63

uy,pwede pa gang patulong,,puro ganun problem dito sa prob sets..hihi,,kung okay lang sayo

Answer 64

sige lang. para makapag review din ako. ano ba course program mo?

Answer 65

yes !!!! Architecture,,,ang layo niyang latent latent na mga iyan

Answer 66

Ahhh. Bat niyo yan inaaral wtf

Answer 67

a waterfall is 75 m high, if all of the gravitational potential energy of the water were converted into heat energy, by how much would the temperature of the water increase in going from the top to the bottom of the falls? [hint: consider a gram or kilogram of water going over the falls]

Answer 68

May alam din ako onte sa architecture sa building technologies and building materials.

Answer 69

yung tunay na may account nito ay Engineering..nakikihiram lang ako,,pinsan ko kasi sya..

Answer 70

hindi ko rin alam kung bakit pati ito inaaral..hahaha...

Answer 71

wow! a na talaga ako,, :)

Answer 72

*hanga

Answer 73

nice kaya mo yan goodluck!

Answer 74

mahirap architecture hahaha. dati akong double degree ng Architecture at Civil Eng. Pero di ko kinaya atska walang pambayad kasi mahal. Kaya nag mech eng nalang ako.

Answer 75

ahhahaha...kakayanin,,,with GOD!

Answer 76

double degree?? may classmate ako dati,first sem,CIVIL,,galing MAPUA

Answer 77

uy,,yun tanong ko ha,,hahaha,,,

Answer 78

ito haha. teka

Answer 79

yes,,thanks talaga,,,hagya na akong makaJackpot ng pinoy dito sa openstudy

Answer 80

simple lang yan hahaha

Answer 81

Pa rate naman ng mga sagot ko para tumaas smartscore ko :))

Answer 82

sadyang 2 ang sagot..kumbaga ay,,naka C at K?

Answer 83

panu nirrate,,di koa alm..sige pate medal..

Answer 84

let m= (?0 kg of water..anu yun nasa unahan ng kg?

Answer 85

ang Celsius Degree equal sa Kelvin

Answer 86

Ang Celsius Degree kasi Change in Temperature na yun eh.

Answer 87

ah ...sige sige..gets...thanks uli,,,

Answer 88

pwede isa pa tanong??? madami pala.....hihihi..abusado na ako neto

Answer 89

Sige wag na ayus na yan hahaha. Diba may hint. sabi use a gram or kilogram of water. Wala kasing mass na given diba. yung potential energy kasi equal narin siya sa Heat.

Diba yung formula ng Potential Energy due to gravity
U=mgh ; m-mass g-grav constant h=height
Let U=W ; W-work done
Let W=Q
Formula...
Q=mcDeltaT

Find: Delta T

Answer 90

ahhhhh..opo opo,,thanks sa pagddiscuss...pwede po magtanong pa?

Answer 91

how many kilograms of Aluminum will experience the same temperature rise as 3.00 kg of copper when the same amount of heat is added to each?

Answer 92

ano yun

Answer 93

last na. magaaral pa ako eh haha