Activity: Lab safety and Equipment Puzzle
1 answer:
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a) Solids keep shape, liquids take shape of containers but don't spill, gases take container's shape and spill out
b) if you heat gas, speed of its molecules will increase and they'll push the container's walls stronger, so the pressure will increase when the container heated
c) Heat flows from warmer to colder bodies
d) For monatomic gases it's U=1.5nRT only, molecular gas has bonds between atoms so total internal energy increases
e) Of gases
f) m/s
g) U=5/2*nRT=37830.85 J
Answer:
a). 1.218 m/s
b). R=2.8
Explanation:
Momentum of the motion the first part of the motion have a momentum that is:
The final momentum is the motion before the action so:
a).
b).
kinetic energy
Kinetic energy after
Kinetic energy before
Ratio =