Question

If I have 2.5 moles of a gas at a pressure of 7.4 atm and volume of 8.2 liters. What is the temperature

Answer 1

Answer:

295.78K

Explanation:

For this question you can use the ideal gas law, which is

$PV=nRT$

where P is pressure, V is volume, n is moles of substance, R is the ideal gas constant, and T is temperature.

We need to find temperature, so we need to rearrange the equation to solve for T

$T=\frac{PV}{nR}$

We are given n=2.5mol, P=7.4atm, and V=8.2L. We can use the gas constant R=.08206 to find the temperature in kelvin. To do so, plug all of the values into the equation (I'll be excluding units for simplicity)

$T=\frac{(7.4)(8.2)}{(2.5)(.08206)} \\\\ T=295.78$

The temperature is 295.78K. To find it in Celsius, subtract 273.