Compute the amount of heat evolved in the oxidation

Assignment Help Chemistry

Reference no: EM13249861

Calculate the amount of heat evolved in the oxidation of 32.0 g of Fe (Ar = 55.85 g/mol) at 25 oC and 1 atm pressure ( ?Hfo(Fe2O 3,s) = -824kJ/mol)

4Fe(s) + 3O2(g) = 2Fe2O3(s)

A 236 kJ
B 330 kJ
C 472 kJ
D 165 kJ
E 118 kJ

Reference no: EM13249861

Questions Cloud

Find total current i and voltage across capacitance : Find the total current I and the voltage across the capacitance. R = 420 ohms. capacitance = 292 ohms. inductance = 250 ohms. Source voltage 100 angle 0 degrees, 60 Hz.

Determine horizontal distance between the points : What is the corresponding horizontal distance between the points - The slop distance 156.777 from one poin to another at rate of+1.5%

Counseling the bereaved : How can the suffering of Jesus be used to evangelized people who are struggling with the problem of evil? How can the suffering of Jesus be used in counseling the bereaved?

Calculate the voltage across each element : A resistance of 40 ohms is connected in series with an inductance of 0.12 H. Calculate the current, power, reactive power, apparent power, and power factor when the combination is connected to a 60 Hz, 120 V source.

Compute the amount of heat evolved in the oxidation : Calculate the amount of heat evolved in the oxidation of 32.0 g of Fe (Ar = 55.85 g/mol) at 25 oC and 1 atm pressure ( ?Hfo(Fe2O 3,s) = -824kJ/mol)

Determine the optimal number : Determine the optimal number (0, 1, 2, 3, 4, 5, 6) of rooms that the Zigus hotel should overbook in order to minimize average daily costs.

Determine circuit power factor and draw impedence phasor : A coil is placed in series with a resistance of 30 ohms. When the combination is connected to a 220 V, 60 Hz source, the current is 4.2 A and the power drawn by the circuit is 670 W.

Find the direction of the minimum magnetic field : A wire has a mass per unit length of 0.500 g/cm. what is the magnitude and direction of the minimum magnetic field

Optical microscopy and scanning electron microscopy : Compare and explain the reason(s) for the difference in image magnification levels between optical (light) microscopy and scanning electron microscopy. What is meant by “sample charging”, with electron microscopes and why is it an issue? How can it ..

User Account

All Pages