Click to Chat

1800-1023-196

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
        when we put pressure constant molar heat capacity Cp.if the objects expand then it is less than Cv.when you  subtract means Cp-Cv get negative sign.But R Universal gas constant value(which comes from the subtraction of those both two, ) become negative then how it is?
8 years ago

SAGAR SINGH - IIT DELHI
879 Points
							Dear student,
Heat capacity (symbol C) is an extensive property ,  meaning it is a physical property that scales with the size of a  physical system. A sample containing twice the amount of substance of  another requires twice the amount of heat (ΔQ) to achieve the same rise in temperature (ΔT):
$C = \frac{\Delta Q}{\Delta T}$

8 years ago
ankitesh gupta
63 Points
							CP AND CV  ARE FIXED FOR MONOATOMIC, DIATOMIC ,POLYATOMIC MOLECULE SINCE CP AND CV ARE CALCULATED BE OBSERVING THEIR VIBRATIONAL MOTION , TRANSLATIONAL MOTION ETC. SO CP IS ALWAYS GREATER THAN CV AND IF YOU HAVE STUDIED FORMULA FOR ADIABATIC EXPANSION PVGAMMA=CONSTANT WHERE GAMMA=CP/CV AND IF IN EXPANSION CV IS GREATER THAN CP THEN ACCORDING TO THE FORMULA THE FINAL VOLUME WOULD BE LESSER THAN THE INTIAL VOLUME BECAUSE CP/CV WOULD BE LESSER THAN 1 . BUT YOU HAD CONSIDERED THE PROCESS TO BE EXPANSION SO HOW COME VOLUME DECREASED THEREFORE YOUR ASSUMPTION WAS ONLY WRONG

6 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Physical Chemistry

View all Questions »

### Course Features

• 731 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution

### Course Features

• 141 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions