MCQ
The relation between two specific heats of a gas is
- ✓${C_P} - {C_V} = \frac{R}{J}$
- B${C_V} - {C_P} = \frac{R}{J}$
- C${C_p} - {C_v} = J$
- D${C_v} - {C_p} = J$
✓
Answer
Correct option: A.
${C_P} - {C_V} = \frac{R}{J}$
a
$c_{p}-c_{V}=R$
$c_{p}-c_{V}=R$
This is the expression when $R$ is given in iuris of $J / mol / K$. when we convert into calories, the expression changes to -
$C_{p}-C_{v}=\frac{R}{T}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The absolute zero is the temperature at which
Gases deviate from perfect gas behaviour because their molecules:
A particle of mass $m$ is tied to string of length $l$ and whirled in vertical circle. The difference of tension and kinetic energy at highest and lowest position of circular path will be
→A spherical body of mass $2\,kg$ starting from rest acquires a kinetic energy of $10000\,J$ at the end of $5^{\text {th }}$ second. The force acted on the body is $.....N$
→One mole of an ideal gas passes through a process where pressure and volume obey the relation $P\, = {P_0}\,\left[ {1 - \frac{1}{2}{{\left( {\frac{{{V_0}}}{V}} \right)}^2}} \right]$. Here $P_0$ and $V_0$ are constants. Calculate the change in the temperature of the gas if its volume change from $V_0$ to $2V_0$
→A small $100$ $g$ sleeve $B$ can slide on a smooth, circular and rigid wire frame $A$ of radius $5$ $m$ placed in vertical place. The wire frame is rotating about its vertical diameter at $2$ $rad/s$. When the sleeve is brought at a particular angular position other than the bottom and the top of the ring, the sleeve will not slide on the wire frame. ......... $N$ is force of interaction between the sleeve and the wire frame at this position.
→The fundamental frequency of vibration of a string stretched between two rigid support is $50\,Hz$. The mass of the string is $18\,g$ and its linear mass density is $20\,g / m$. The speed of the transverse waves so produced in the string is $..........\,ms ^{-1}$
→A transverse wave of amplitude $0.5\, m$ and wavelength $1\, m$ and frequency $2\, Hz$ is propagating in a string in the negative $x-$direction. The expression for this wave is
→A particle is projected from ground in vertical upward direction at $t = 0$, with initial velocity $48\, m/s$ and the distance travelled by particle in $5^{th}$ second is......$m$ $(g = 10\, m/s^2)$
→Which relation is correct for isometric process