If △H value of a reaction is positive, the conditions that must be a spontaneous process is().
A: △S value is positive and high temperature
B: △S value is positive and low temperature
C: △S value is negative and high temperature
D: △S value of is negative and low temperature
A: △S value is positive and high temperature
B: △S value is positive and low temperature
C: △S value is negative and high temperature
D: △S value of is negative and low temperature
举一反三
- The sign bits (S) indicate if the temperature is positive or negative: for positive numbers S = 0 and for ______ numbers S = 1. A: negative B: zero C: positive
- The aphotic zone (bottom of the ocean) will have ____ and ____ while the photic zone (surface of the ocean) will have ____ and ____. A: low temperature, low salinity; high temperature, high salinity B: low temperature, high salinity; high temperature, low salinity C: high temperature, high salinity; low temperature, low salinity D: high temperature, low salinity; low temperature, high salinity E: both have equal temperature and salinity
- ui=1V, then uO= ( ).[img=657x433]1803c60dceaebe2.jpg[/img] A: 1V B: Positive saturation value C: Negative saturation value D: −1V
- ui=−1mV, uO= ( ).[img=684x490]1803c60dd52f360.jpg[/img] A: Positive saturation value B: Negative saturation value C: −1mV D: 1mV
- Can there be a temperature at which °C and °F have the same value? Can there be more than one such temperature?