# A sample of hydrogen exerts a pressure of 1.50 atmospheres at a temperature of 160 K. What pressure does the gas exert at 640 K?

##### 1 Answer

Apr 18, 2017

The pressure will be

#### Explanation:

The volume is not given, so I assume it remains unchanged.

To calculate the new pressure you use the following equality:

#(pxxV)/T=const#

So here we have:

We can divide both sides of the equation by

From this proportion we calculate that:

#p_2=(p_1xxT_2)/T_1#

If we substitute the given values we get:

#p_2=(1.5xx640)/160#

Answer: **The new pressure is #6# atmospheres**