Question

18.8) The pressure inside a sealed can of soft-drink is 110 KPa
when at a temperature of 20 ^{0} C.

What is the pressure inside the can if the temperature is
increased to 50 ^{0} C (in KPa)?

(Assume that the contents of the can are unaffected by the change in temperature / pressure )

18.9) The gauge pressure inside a tyre on a car is 230 KPa at a
temperature of 18 ^{0} C.

If after a long road trip the gauge pressure inside the tyre is
247 KPa what temperature is the air inside the tyre (in
^{0} C)?

Could please do clear structure and show your work. Thanks

Answer #1

In a classroom demonstration, the pressure inside a soft drink
can is suddenly reduced to essentially zero
Assuming the can to be a cylinder with a height of 10 cm and a
diameter of 6.4 cm , find the net inward force exerted on the
vertical sides of the can due to atmospheric pressure.

A can of soft drink, 12-cm high and 6-cm diameter, is initially
at 20°C. It is placed in a refrigerator where the air is at 0°C.
The convective heat transfer coefficient associated with the outer
surface of the can is 10 W/m2 °C. Assuming the properties of the
drink to be those of water and that the heat capacity of the
container is negligible, estimate the time taken for the
temperature of the drink to reach 5°C.
USING EES PLEASE

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