IGCSE Topic Temperature

Which is true about the molecules at 0 K?

• They are moving really fast
• They are moving really slowly
• There is no motion at 0 K
• All of the above are true

0 K is ____ degrees Celsuis

• -100
• 273
• 200
• -273

Convert 300 K to ^oC

• 27^oC
• 0^oC
• -27^oC
• 573^oC

Convert -89 ^oC to K

• 184K
• 362K
• -362K
• -184K

How do you convert Celsius to Kelvin?

• Add 273
• Subtract 273
• You can't convert those
• They are the same thing

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

Which of the following would increase the pressure on a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

Calculate the heat needed to raise the temperature of 0.25 kg of aluminum 7°C (c=900 J/kg°C)

• 1575 J
• -1575 J
• 514 J
• -514 J

How much heat energy is needed to raise the temperature of 2kg of water from 5 °C to 100 °C? The specific heat capacity of water is 4200 J/kg °C.

• 42000 J
• 840000 J
• 798000 J