# What is the formula for specific heat at constant volume?

## What is the formula for specific heat at constant volume?

where Cp = Mcp and Cv = Mcv. Cp represents the heat required to raise the temperature of 1 mole of a gas by 1 deg at constant pressure and is called the molecular heat of the gas at constant pressure. Similarly, Cv is the molecular heat at constant volume.

## What is the value of R for air?

units as: R = 8.314 J/mol·K. This means that for air, you can use the value R = 287 J/kg·K.

What is specific heat at constant volume and pressure?

Specific heat at constant volume means the amount of that is required to raise the temperature of unit mass of gas by 1 degree at constant volume. Q=nCV△T(1) For an ideal gas, from 1st law of thermodynamics.

### What is volume constant?

In thermodynamics, an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant.

### What is the constant volume of a gas?

What is the volume of 1 mole of an ideal gas at STP (Standard Temperature and Pressure = 0 °C, 1 atm)? So, the volume of an ideal gas is 22.41 L/mol at STP. This, 22.4 L, is probably the most remembered and least useful number in chemistry.

What is the value of R in gas equation?

What is the value of Gas constant (R)? The gas constant value is given by R = 8.3144598(48) J⋅mol^−1⋅K^−1.

## How do you find volume at constant pressure?

The equations describing these laws are special cases of the ideal gas law, PV = nRT, where P is the pressure of the gas, V is its volume, n is the number of moles of the gas, T is its kelvin temperature, and R is the ideal (universal) gas constant.

## How do you calculate CP CV for gas mixture?

So we get, Cp / Cv = (17 / 11). Also you can use, (Cp/Cv) – 1 = (R/Cv). Therefore, (Cp/Cv) = 1 + (R/Cv) = 1 + (6/11) = 17/11.

How do you find the volume of a gas cylinder?

To find the volume of gas available from a compressed gas cylinder, we apply the Ideal Gas Law (PV = nRT). In a high-pressure cylinder, the volume will be affected by the content’s compressibility factor Z (PV = ZnRT). 