How many minutes will it take for the heater to heat water
Portable heater transfers 255 W to 5.5 L water, where 1 W = 1J/s. How many minutes will it take for the heater to heat 5.5 L water from 25 degrees C to 42 degrees C? Assume water has density of 1.0 g/mL
Expected delivery within 24 Hours
Calculate the equilibrium concentration of {rm H_2} in a reaction mixture obtained by heating 6.75 {rm mol} of steam and an excess of solid carbon in a 7.44 {rm L} container.
A modulation constellation is given by S = {c(k + jl) | k = 3, 1, 1, 3 and l = 3, 1, 1, 3 and j = square root of -1, where c is a constant. Determine the value of c to ensure a unit energy constellation. Sketch this constellation. Find d^2 min a
A layer of water seperates two smooth surfaces a distance of 2r. Derive an experssion for the force needed to pul the two surfaces apart. Consider the bottom surface fixed. What is the force needed to seperate the top surface?
A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 °C. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 °C.
What is the formula used to determine the mass of KClO3 to form a saturated solution in 250g of water at 30 degrees celcius
Tartaric acid, H2C4H4O6, has two acidic hydrogens. The acid is often present in wines and precipitates from solution as the wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 25.65 mL of 0.1500
What is the largest amount of H2O in grams that can be formed when 5.50 g of H2 reacts with 5.50 g of O2, based on the balanced reaction below.
In a micromanufacturing process a 50 nm thick silicon nitride layer is employed as a hard mask for a silicon layer. The etchant is potassium hydroxide (KOH).
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