In a calorimetry experiment, if 100 g of water absorbs 4200 J of heat, what is t

Practice Questions

Q1
In a calorimetry experiment, if 100 g of water absorbs 4200 J of heat, what is the change in temperature assuming no heat loss?
  1. 1 °C
  2. 2 °C
  3. 3 °C
  4. 4 °C

Questions & Step-by-Step Solutions

In a calorimetry experiment, if 100 g of water absorbs 4200 J of heat, what is the change in temperature assuming no heat loss?
  • Step 1: Identify the formula to use, which is q = mcΔT, where q is the heat absorbed, m is the mass of the water, c is the specific heat capacity, and ΔT is the change in temperature.
  • Step 2: Write down the values you have: q = 4200 J (heat absorbed), m = 100 g (mass of water), and c = 4.18 J/g°C (specific heat capacity of water).
  • Step 3: Rearrange the formula to solve for ΔT: ΔT = q / (mc).
  • Step 4: Substitute the values into the rearranged formula: ΔT = 4200 J / (100 g * 4.18 J/g°C).
  • Step 5: Calculate the denominator: 100 g * 4.18 J/g°C = 418 J/°C.
  • Step 6: Now divide the heat absorbed by the result from Step 5: ΔT = 4200 J / 418 J/°C.
  • Step 7: Perform the division: ΔT = 10 °C.
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