Question

Raising 100 grams of water from 40 to 60 °C (the specific heat capacity of water is 1 cal/g) requires the addition of
A) 120 calories.
B) 1500 calories.
C) 2000 calories.
D) 2400 calories.

Answer 1

You must use the specific heat formula:
\(q=mc∆T\)\
Here c is given in calories
m=100 g
c= 1 cal/g
∆T=60-40=20°C
\(q=(100~g)(1~cal/g)(20°C)\)
\(q=\_\_\_\)

Answer 2

Thank you!

Answer 3

No problem!