The specific heat of methane is 2.21 J/g·°C. If 900 J of heat is added to a 45.0 g sample of methane at 298 K, what is the final temperature of methane?

Determine the maximum r-value of the polar equation r =3+3 cos 0

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit