Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the...

90.2K

Verified Solution

Question

Chemistry

Dry ice is solid carbon dioxide. Instead of melting, solidcarbon dioxide sublimes according to the following equation:CO2(s)→CO2(g). When dry ice is added to warmwater, heat from the water causes the dry ice to sublime morequickly. The evaporating carbon dioxide produces a dense fog oftenused to create special effects. In a simple dry ice fog machine,dry ice is added to warm water in a Styrofoam cooler. The dry iceproduces fog until it evaporates away, or until the water gets toocold to sublime the dry ice quickly enough. Suppose that a smallStyrofoam cooler holds 15.0 liters of water heated to 83 ∘C.

Use standard enthalpies of formation to calculate thechange in enthalpy for dry ice sublimation. (The ΔH∘f forCO2(s) is - 427.4kJ/mol). Express your answer using threesignificant figures.

Calculate the mass of dry ice that should be added tothe water so that the dry ice completely sublimes away when thewater reaches 11 ∘C. Assume no heat loss to thesurroundings. Express your answer using twosignificant figures.

Answer & Explanation Solved by verified expert
4.2 Ratings (610 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students