# What is the heat added to this monatomic ideal gas

• Brit412
In summary, the heat added to a monatomic ideal gas is the amount of thermal energy transferred from an external source. It is calculated using the formula Q = nCvΔT, and is affected by the number of moles of gas, specific heat capacity, and change in temperature. The units of heat added are joules (J) or calories (cal). It can be negative if the gas releases thermal energy to its surroundings.
Brit412

## Homework Statement

A monatomic ideal gas expands at a pressure of 110kPa and from a volume of 0.75m^3 to 0.93m^3. Find the amount of heat added to the gas.

## Homework Equations

So what I did was:
W= P∆V
and I know ∆U= Q-W
so Q would equal ∆U+W, but how do you know what ∆U equals?

## The Attempt at a Solution

what are you assumptions? that will tell you what delta U is equal to.

If I assume that this is at a constant pressure ∆U= 3/2nR∆T?, but since W=P∆V=nR∆T then ∆U= 3/2W?

## What is the heat added to this monatomic ideal gas?

The heat added to a monatomic ideal gas is the amount of thermal energy that is transferred to the gas from an external source.

## How is the heat added to a monatomic ideal gas calculated?

The heat added to a monatomic ideal gas is calculated using the formula Q = nCvΔT, where Q is the heat added, n is the number of moles of gas, Cv is the specific heat capacity of the gas at constant volume, and ΔT is the change in temperature.

## What factors affect the amount of heat added to a monatomic ideal gas?

The amount of heat added to a monatomic ideal gas is affected by the number of moles of gas, the specific heat capacity of the gas, and the change in temperature.

## What are the units of heat added to a monatomic ideal gas?

The units of heat added to a monatomic ideal gas are joules (J) or calories (cal).

## Can the heat added to a monatomic ideal gas be negative?

Yes, the heat added to a monatomic ideal gas can be negative if the gas releases thermal energy to its surroundings.

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