Molecular Physics | Thermodynamics Answers

A closed system containing a gas expands slowly in a piston/cylinder from 600kPa and

0.1 m3

to a final volume of 0.5 m3

. Determine the work done if the pressure distribution

is determined to be: a) Pv = C, b) pV1.4 = C, c) P = C,

d) p = -300V + 630 kPa where V is in m3

Many gas appliances such as ovens and heaters use a small flame to ignite the main burner .In order to make sure that the small flame is burning, a temperature-measuring device is inserted into the flame. What is the most suitable device to use?

You are asked by your mother to cook pork nilaga. You have only an ordinary ketttle to use for cooking.she even reminds you to save energy because we are in a state of pandemic due to covid -19. Saving resources nowadays is a must because we are not sure of the worl's economy.As a student of Physical Science and with your knowledge of properties of matter in relation to intermolecular forces, how are you going to perform your task in sucb a way that energy in not wasted?

how much heat must be absorbed by 475 grams of water to raise its temperature by 30°c

If bock 1 weighs 50 kg, while block 2 weighs 90 kg , determine the external force p2 so that block 2 will maintain its position. Let p1 be equal to 5kN.Assume 0.3 coefficient of statics friction

What is the potential energy of 0.75 kg box which is lifted from the ground to a height of 0.5 m m above a meter high table? Use grams = 10 m/s

Driver of a 1125 kg dump truck exerts a sudden break with a force 2,500 N. Calculate the magnitude of calculate the acceleration of the truck uppon sudden brake

Write down energy flow equation for non flow process. Estimate heat flow to/from the system.

Specific internal energy is 420kJ/kg at the beginning of the expansion and specific internal energy is

200kJ/kg at the end of the process. The work done by the system is 100kJ/kg during the process.

where did you get the inner diameter?

A bus starts from rest at a station and accelerates at a speed rate of 2m/s^2 for 15 seconds. It then runs at a constant speed for 25 seconds and slows down at -3m/s^2 until it stops. Find the total distance travelled by the bus.