Question

Answer the following questions and show your work.

a. A piece of silver of mass 362 g has a heat capacity of 85.7 J/C. What the molar heat capacity of Ag?

b. If that piece of silver is heated from 20C to 50C, how many J of energy are required?

c. Complete the table below:

substance	molar heat capacity	boiling point
H2O
Ag
ethyl alcohol

d. What can you say about the relationship between heat capacity and boiling point?

Answer 1

a. mass of silver=( 362/1000)kg & C is 85.7 J/degreeC

1 kg of silver requires xJ/degreeC by proportion thus X = 85.7 × 1 kg / .362= 236. 7 J/ degree C

b) Q= mcdelta of T thus Q= 362×85.7 × 30 = 930702 Joules

sub molar heat capacity bp

H20 75.2 . 100 degree C

Ag. 24.9. 2162 degree C

ethy alcohol .111. 78.47 degree C

d)BP is state where there is physical state chnge event involving liquid .vapiur transition and In Specific heat caoacity is the amount of thermL heat requirea tovraisethe temp of 1 kg of substance by 1 degreee celsius.