CAN SOMEONE ANSER ALL THESE QUESTIONS IF UR SMART 1. You eat a snack that has 190 Calories, how many kilojoules did you consume? 2. A serving of fish contains 50.0 g protein and 4.0 g fat. If protein has a caloric
value of 4 kcal/g and fat has 9 kcal/g, how many kcal are in a serving?
3. If you have a body temperature of 102.4 ºF, what is your temperature in degrees
Celsius and in Kelvin?
ºC
K
4. You need to heat 7.59 g of water from 5.2 ºC to 368 K. How much heat is
needed? Give answer in Joules and calories.
J
cal
5. How much energy is absorbed by 250.0 g of water when its temperature rises
from 25.0 ºC to 88.5 ºC? Specific heat capacity of water is 4.184 J/gºC.
6. What mass of iron in pounds is needed to absorb 5.4 kJ of energy if itstemperature
isto increase by 5.0 °C? Specific heat capacity of iron is 0.449 J/gºC
7. If 294 J of heat is transferred to a 10.0 g sample of silver at 25 ºC, what is the
final temperature of the silver? Specific heat capacity of silver is 0.235 J/gºC