Identify the value of R at STP:
Correct answer: C. 0.0821 atm dm3 K-1 mol-1
- A. 8.324 atm dm-3 mol-1
- B. 0.0821 cal K-1 mol-1
- C. 0.0821 atm dm3 K-1 mol-1
- D. 8.314 cal K-1 mol-1
Explanation
At STP one mole of a gas occupies 22.4 dm3 and the value of R is 0.0821 atm dm3 K-1 mol-1.
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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