Compute the amount of heat transferred

Reference no: EM13277971

Consider the reaction: 2 Mg(s) + O2 (g) ? 2MgO(s) ?H = -1204 kJ (a) Is this reaction exothermic or endothermic? (b) What is the enthalpy change for the reverse reaction? Is the reverse reaction exothermic or endothermic? (c) Calculate the amount of heat transferred when 7.10 g of Mg(s) reacts at constant pressure with excess oxygen. (d) How many grams of MgO are produced during a run of this reaction which experiences an energy change of - 234 kJ?

Reference no: EM13277971

Questions Cloud

Implement the equation if a power amplifier is available : A 4 to 20mA control signal is loaded by a 100Ohm resistor and must produce a 20 to 40V motor drive signal. Develop the equation relating the input current to the output voltage.

What is the voltage amplitude across the secondary coil : A transformer with 1710 turns on the primary and 229 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output

Calculate the resistance change resulting from a strain : A strain gauge has a GF=2.14 and a nominal resistance of 120 Ohm . Calculate the resistance change resulting from a strain of 144µin / in .

Does situation fall in category of small or large collection : A detector with charge collection time of 150 ns is used with a preamplifier whose input circuit can be represented by the parallel combination of 300 pF and 10,000 ohms. Does this situation fall in the category of small or large collection circui..

Compute the amount of heat transferred : Calculate the amount of heat transferred when 7.10 g of Mg(s) reacts at constant pressure with excess oxygen. How many grams of MgO are produced during a run of this reaction which experiences an energy change of - 234 kJ

Calculate the equilibrium temperature of the asteroid : A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. calculate the equilibrium temperature of the asteroid

Calculate the exit temperature : Air flows through the supersonic nozzle. The inlet conditions are 7 KPa and 420 degree C. The nozzle exit diameter is adjusted such that the exiting velocity is 700m/s. Calculate the exit temperature

Design and simulate 32-bit mips alu using vhdl with overflow : The next step is to construct the 32-bit ALU by wiring EIGHT 4-bit ALU blocks. The final overflow output of the 32-bit ALU is the overflow output from the most significant 4-bit ALU block. You also need a behavioral VHDL block for generating the f..

Global bathymetric prediction for ocean modeling : What important subsea feature or features were missed in the example cited in Sandwell and Smith's paper on "Global Bathymetric Prediction for Ocean Modeling and Marine Geophysics"? Can you cite specific examples?

User Account

All Pages