# The tires of a car in a certain city are inflated…

### Question Description:

20.50

The tires of a car in a certain city are inflated to 28 lbs a day that the temperature is 12 º C. The next day the temperature rises to 32 ° C. a. Calculates the tire pressure at this temperature. b. Is there any risk for these temperature changes? Suppose that for the helium volume is 0.06 L and the pressure is 2.25 atm. a. Calculated the constants a and b of Van der Waals forces. b. Find the radius of the spherical molecules considering. An isothermal expansion, two moles of an ideal monatomic gas is performed by 2 until 5 L keeping the temperature constant at 300 ° K. a. Calculate the work done if the process is irreversible at a pressure of 7 atm. b. Calculate the work done if the process is reversible. A crystal is 12 ° C and an area of ​​2 m2. If the air temperature is 0 ° C, The transmission of heat by convection in this case is 4 W / (m2 K). Calculate the energy is lost by convection in each second. At 90 ° C and 110 Torr, the phosphorus vapor density is 0.6388 g / L. Calculating the molecular formula of phosphorus. Give an example where applying calculate the specific heat.