Question

Which substance requires 4.186 Joules of energy to increase its temperature by 1 degree Celsius?
200 g of gold
800 g mercury
400 g of lead
1 g of water

Answer 1

@FortyTheRapper

Answer 2

@ganeshie8

Answer 3

Required equation is
Q=m*s*difference of temperature

Answer 4

Given
Q=4.186joule

Answer 5

Difference of temperature = 1

Answer 6

m=mass

Answer 7

s=specific heat of substance

Answer 8

For example specific heat of water =4186 joule/kg/°c

Answer 9

The unit of mass m will b kg

Answer 10

I gm water coz thats how we define a calorie which is in modern terms 4.2 joule

Answer 11

Early scientists assume water to have specific hear 1 units and thus the heat needed was said to be a calorie