Question

1. heat is

a. average kinetic energy
b. total thermal energy
c. thermal energy that is moving
d. temperature

1. choose the correct statement below:

a. mass can transfer out of a closed system
b. mass can transfer into an isolated system
c. heat can transfer into an isolated system
d. the amount of energy in an isolated system doesnt change

1. which formula do you need to use to convert °f to °c?

a. °c=(°f - 32)×5/9
b. °f=(°c×9/5)+32
c. °c=k - 273
d. k=(°f/32)(5/9)+273

1. convert 273k to celsius. show your work.
2. a 5 - gallon bucket of water and a teacup full of water both have a temperature of 75°c (assume they are at the start of measuring). which has more thermal energy?

a. the 5 - gallon bucket
b. the teacup
c. they have the same amount of thermal energy
d. not enough information to tell

Explanation:

Step1: Define heat

Heat is thermal energy that is moving. Average kinetic energy is related to temperature, total thermal energy is the sum of all kinetic and potential energies of particles in a substance, and temperature is a measure of the average kinetic energy of particles. So the answer to question 1 is c.

Step2: Analyze system - mass and heat transfer

In a closed - system, mass cannot transfer out, but heat can be transferred in or out. In an isolated system, neither mass nor heat can transfer in or out, and the amount of energy in an isolated system is conserved. So the answer to question 2 is c.

Step3: Recall temperature conversion formula

To convert from Fahrenheit ($^{\circ}F$) to Celsius ($^{\circ}C$), the formula is $^{\circ}C=(^{\circ}F - 32)\times\frac{5}{9}$. So the answer to question 3 is a.

Step4: Convert Kelvin to Celsius

The conversion formula from Kelvin (K) to Celsius is $^{\circ}C=K - 273$. For 273K, $^{\circ}C=273 - 273=0^{\circ}C$.

Step5: Calculate heat energy

We need more information such as the mass of the substance, its specific - heat capacity to calculate the heat energy for question 5. Assuming we use the formula $Q = mc\Delta T$ (where $Q$ is heat energy, $m$ is mass, $c$ is specific - heat capacity, and $\Delta T$ is change in temperature), without given values, we can't calculate a numerical answer. But the concept is based on this formula.

Answer:

1. c. Thermal energy that is moving
2. c. Heat can transfer into an isolated system
3. a. $^{\circ}C=(^{\circ}F - 32)\times\frac{5}{9}$
4. $0^{\circ}C$
5. Need more information to calculate (concept: $Q = mc\Delta T$)