問題詳情
11. Assuming that the combustion of hydrogen gas provides three times as much energy per gram as gasoline, calculate thevolume of liquid H2 (density = 0.0710 g/mL) required to furnish the energy contained in 80.0 L (about 20 gal) of gasoline(density = 0.740 g/mL). Calculate also the volume that this hydrogen would occupy as a gas at 1.00 atm and 25°C.At 1.00 atm and 25°C, the hydrogen gas needed to replace 20 gal of gasoline occupies a volume of L.
(A) 277
(B) 19700
(C) 59200
(D) 239000
(E) 977000
(A) 277
(B) 19700
(C) 59200
(D) 239000
(E) 977000
參考答案
無參考答案
內容推薦
- At a particular temperature, 0 moles of SO3 is placed into a 0 L rigid container, and the S
- Which of the following statements about RNA polymerase in bacteria is INCORRECT?(A) It binds the
- Which of the following molecules exhibits chirality?I. 1-chloroethanol II. 2-chloroethanol III. 2
- You have 0 mL of 0.10 M HA. After adding 0 mL of 0.10 M NaOH, the pH is What is the K
- Which of the following is the correct order for molecules from most to least polar?(A) CH4 > C
- Which structure prevents blood flowing back into the atria during ventricular contractions?(A) a
- Bile is crucial for ______ digestion because of its function in _____.(A) protein, protecting th
- Calculate the concentration of Ag+ in a solution prepared by mixing 10 mL 0×10-3 M AgNO3 wit
- Which animal would you predict would have the highest mass-specific metabolic rate?(A) a lizard(
- A DNA specimen that contains 30% guanine has ________ thymine.(A) 10%(B) 20%(C)30%(D) 40%(E) The
內容推薦
- Which of the following are paramagnetic? O2 O2– O22– B2 C2 N2 F2 P2(A) O2, O22– , B2 (B) O2–, C2
- The respiratory centers that control ventilation of the lungs in mammals are located in the(A) b
- What protein is involved in synthesizing messenger RNA in eukaryotes?(A) RNA polymerase I(B) RNA
- The ascending portion of the loop of Henle is(A) permeable to water and impermeable to sodium.(B
- Which of these hormone-effect pairs is mismatched?(A) growth hormone-linear growth(B) glucagon-b
- MicroRNAs (miRNAs)(A) are long RNA molecules.(B) promotes post-translational modification of pro
- Surgical removal of the pancreas would(A) increase the acidity of the small intestine.(B) preven
- Which one of the following statements is correct? (A) The systematic name for TeO32- is tellurate
- Alternation of generations means(A) One phase of the life cycle takes place on land and the othe
- The tracheae of adult terrestrial insects have been a factor in the great abundance of insects b
- Sister chromatids separate during(A) prophase of meiosis I.(B) metaphase of meiosis I.(C)metapha
- 【題組】Who in the picture is Vivian? (A) A.(B) B.(C) C.(D) D.
- Given that a sample of air is made up of nitrogen, oxygen and argon in the mole fractions 78% N2,
- A 100.-L flask contains a mixture of methane (CH4) and argon gases at 25℃. The mass of argon pres
- The overall reaction in a commercial heat pack can be represented as 4Fe(s) + 3O2(g) → 2Fe2O3(s),
- What is the function of the poly A tail?(A) The poly A tail is required for the termination of t
- A hypothetical reaction, A + B +2C → 2D + 3E, has the rate law as Rate = -(△[A]/△t) = k[A][B]A
- Parathyroid hormone's main function is to(A) increase glucose mobilization during stress or
- 【題組】(A) spent most of our time playing(B) went shopping together after school(C) had to study at
- Which of the choices lists the three phases of the ovarian cycle in the correct order?(A) follic
- The rate constant for the gas-phase decomposition of N2O5, N2O5 → 2NO2 + (1/2)O2 has the followin
- The nearest living relatives of crocodiles and alligators are(A) snakes.(B) birds.(C)turtles.(D)
- Which of the following components of a virus is not encoded by its own genome?(A) capsid(B) lipi
- Place the events of parturition in the correct order.(1) Stretch-sensitive neurons send signals
- Antigen-presenting cells include(A) macrophages.(B) macrophages and B cells.(C)dendritic cells a