Find specific entropy change of nitrogen related to cooling
Consider the 0.3 kg of N2 in a rigid container at 400 K and 5 atm. The N2 is cooled to 300 K. Determine the specific entropy change of the N2 associated with this cooling process.
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In coming to a stop,a car leaves a skid marks 92m long on th highway. Assuming a deceleration of 7.0 m/s squared, estimate the speed of the car just before breaking.
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A standard solution of 0.243 M NaOH was usedto determine the concentration of a hydrochloric acid solution. If46.33 mL of NaOH is needed to neutralize10.00 mL of the acid, what is the molar concentration of the acid?
An unknown salt is either NaF, NaCl, or NaOCl. When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
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Estimate the true percentage of acceptable fruit using a 99% confidence interval. (Hint: first find the number of acceptable fruit in the sample.)
The local atmospheric pressure and acceleration due to gravity are 100 kpa and 9.81m/s^2 respectivly. For the water, determine the pressure,in kpa, and volume in cm^3.
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