thermochemistry

. Mountain climbers often brew tea by melting snow, which they heats over a stove. Our stove
burns butane (C4H10), which has a heat of combustion of -2878 kJ/mol. The temperature of the
snow is initially at -20 °C, and we need 80 °C water to brew tea.
a. How much heat is needed to turn the snow into a cup (237 mL) of water hot enough to
make a cup of tea?
b. Calculate the mass of butane needed to fuel the stove for this process

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. For part A i calculated Q to be 99.1608 kJ/mol. I don't understand where to go from there though to find part b.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. Assume the plane is traveling horizontally with a speed of 195 km/h (54.2 m/s). Suppose, instead, that the plane releases the

  2. Physics

    A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge H = 231 m below. If the plane is traveling horizontally with a speed of 227 km/h (63.1 m/s), how far in advance of the recipients (horizontal

  3. science

    if more sugar is placed into a glass of iced tea than can dissolve in the te,the additional sugar will sink to the bottom of the iced tea. Which of the following statements best accounts for the observation that an oversupply of

  4. physics

    A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 16 m/s at an angle of 55° above the horizontal. The kit is caught right at the peak of the its

  1. Physics

    Also got lost on this question: A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4 m/s), (a) how far in advance of

  2. chemistry

    What is Dalton's law of partial pressures? Explain how this law relates to the fact that mountain climbers must carry tanks of oxygen when scaling high peaks.

  3. Physics

    A black wood stove with surface area 4.6 m^2 is made from cast iron 4.0 mm thick. The interior wall of the stove is at 650 C, while the exterior is at 647 C. Part A What is the rate of heat conduction through the stove wall? Part

  4. Science

    A cold cast iron skillet is placed onto a stove top. When the stove is turned on, the skillet becomes very hot. Why does the skillet become hot? A) The skillet is losing energy (heat) to the stove. B) The stove is gaining energy

  1. statistics

    A group of seven mountain climbers wishes to form a mountain climbing team of five.how many different teams could be formed?

  2. trig confused.. pls help

    A group of mountain climbers are using trigonometry to find the height of a mountain located in the Rockies. From point A, which is due west of the mountain, the angle of elevation to the top is 56 degrees. From point B, which is

  3. Chemistry

    Fractional distillation is a technique used to separate complex mixtures of hydrocarbons based on differences in their 1. heats of fusion 2. heats of vaporization 3. melting points 4. boiling points

  4. Physics 2

    A 1.00-L insulated bottle is full of tea at 88.0°C. You pour out a mug of tea and immediately screw the stopper back on the bottle. Find the change in temperature of the tea remaining in the bottle that results from the admission

View more similar questions or ask a new question.