Question

1. match a - average kinetic energy - total thermal energy - thermal energy that is moved - temperature 2. choose the correct statement below. - mass can escape out of a closed system - mass can transfer into an isolated system - heat can transfer into an isolated system - the amount of energy in an isolated system does not change temperature conversion formulas: (^{circ}c=(^{circ}f - 32)\times\frac{5}{9}), (^{circ}f=(^{circ}c\times\frac{9}{5})+32), (k = ^{circ}c+273), (^{circ}c=k - 273), (^{circ}f=(k - 273.15)(9/5)+32), (k=(^{circ}f - 32)(5/9)+273) 3. which formula do you need to use to convert 105 (^{circ}f) to (^{circ}c)? - (^{circ}c=(^{circ}f - 32)\times\frac{5}{9}) - (^{circ}f=(^{circ}c\times\frac{9}{5})+32) - (^{circ}c=k - 273) - (k=(^{circ}f - 32)(5/9)+273) 4. convert 273k to celsius. show your work. (^{circ}c = 273 - 273=0) (^{circ}c = 0) 5. a 5 - gallon bucket of toothpaste and a normal - sized tube of toothpaste both have a temperature of 23 (^{circ}c) (assume they are the kind of toothpaste). which one has more total thermal energy? - the tube of toothpaste - the 5 - gallon bucket of toothpaste - they both have the same amount of thermal energy - they both have zero thermal energy

Explanation:

Step1: Answer question 2

In an isolated system, neither matter nor energy can enter or leave. So the amount of energy in an isolated system does not change. The correct statement is d.

Step2: Answer question 3

The formula to convert Fahrenheit ($^{\circ}F$) to Celsius ($^{\circ}C$) is $^{\circ}C=(^{\circ}F - 32)\times\frac{5}{9}$, which is option a.

Step3: Answer question 5

Thermal energy depends on mass, temperature and specific - heat capacity. Since both have the same temperature and specific - heat capacity (same substance), the 5 - gallon bucket of toothpaste has more mass and thus more total thermal energy. The answer is b.

Answer:

1. d. The amount of energy in an isolated system does not change
2. a. $^{\circ}C=(^{\circ}F - 32)\times\frac{5}{9}$
3. b. The 5 - gallon bucket of toothpaste