# 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).