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- 3.5 kg of an ideal gas is heated at constant temperature from 15 m3 and 4.0 atm to 35 m3 at Determine the work done(a) What is the physical significance of energy of activation ? Explain with diagram.(b) In general, it is observed that the rate of a chemical reaction doubles with every 10 degree rise in temperature. If the generalization holds good for the reaction in the temperature range of 295 K to 305 K, what would be the value of activation energy for this reaction ?[R = 8.314 J mol-1 K-1]A tank of carbon tetrachloride has a mass of 784 kg and a volume of 0.481 m3. What is its specific gravity?
- Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. What type of electromagnetic radiation is emitted in each transition? a. n = 4 → n = 3 b. n = 5 → n = 4 c. n = 5 → n = 3A sample of hydrogen expands from 435 mL to 956 mL at constant temperature.Calculate the work done (in L-atm and Joules) if it expands against a constant pressureof 1.75 atmWhen the potential energy of a conservative system increases, the kinetic energy?
- Explain which kind of microstructures you expect to observe at room temperature if an iron-carbon alloy of eutectoid composition is cooled down following the red and blue curves. 800 727° 700 Coarse pearlite 600 a+ FeC Fine pearlite 500 y+ a+ Fe,C 400 Bainite 300 M5- 200 so - Mo 100 1 sec 1 min 1 hour 1 day 102 103 104 105 0.1 10 Time, secondsA 325 L of carbon tetrachloride weighs 500 kg. a. Calculate its density. b. Calculate its specific weight c. Calculate its specific gravity.A brass rod and an aluminum rod are 90.00 cm and 90.06 cm, respectively, at 20°C. At what common temperature will the two rods be exactly the same length? Linear coefficient of Expansion per degrees Celsius for Bronze and Aluminum are 19x10^(-6) and 24x10^(-6), respectively. 113.33 C 123.33 C C. 133.33 C d. 143.33 C a. b.